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Uranopilite

A valid IMA mineral species - grandfathered
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ⓘJáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
ⓘJohanngeorgenstadt, Erzgebirgskreis, Saxony, Germany
May dehydrate toMeta-uranopilite.

Identification and Analysis
May appear very similar to other common uranium secondary minerals including uranophane, zippeite, natrozippeite, and others.


Unique Identifiers
Type description reference:
Weisbach, A. (1882) Mineralogische Notizen II. 17. Uranocher, Neues Jahrbuch für Mineralogie, Bd. 2, 258-259.

Classification of Uranopilite

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
A : Without cations
Dana 8th ed.:
31.2.6.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)6(XO4)Zq·xH2O
Hey's CIM Ref.:
25.8.9

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U

Mineral Symbols
Transparency:
Translucent
Colour:
Bright yellow, straw-yellow; colourless to light yellow in transmitted light.
Comment:
Soft
Cleavage:
Perfect
On {010}, perfect.
Density:
3.7 - 4.0 g/cm3 (Measured)    3.74 g/cm3 (Calculated)

Optical Data of Uranopilite
Surface Relief:
Moderate
Dispersion:
r > v to r < v strong
Pleochroism:
Visible
Comments:
X = colorless; Y = Z = yellow.

Chemistry of Uranopilite

Crystallography of Uranopilite
Place of Conservation of Type Material:
Technische Universität, Bergakademie, Freiberg, Germany, numbers 18738, 18742, 18743 (type)
Universität Göttingen, Göttingen, Germany, number GZG.MIN.6.4.98.3. (type).
Associated Minerals at Type Locality:
FourmarieriteGypsumJohanniteSoddyiteUraninite
Zippeite
Reference:
Weisbach, A. (1882) Mineralogische Notizen II. 17. Uranocher, Neues Jahrbuch für Mineralogie, Bd. 2, 258-259.

Synonyms of Uranopilite

Other Language Names for Uranopilite

Common AssociatesOrth.mm2 :Pca217.EA.05Metauranopilite(UO2)6(SO4)(OH)10 · 5H2O7.EA.10Jáchymovite(UO2)8(SO4)(OH)14 · 13H2OMon. 2/m :P21/m7.EA.15Shumwayite(UO2)2(SO4)2 · 5H2OMon. 2/m :P21/b

Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield

Fluorescence of Uranopilite

Other Information
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    • References for UranopiliteⓘHuemul MineBrodtkorb et al. (3)
    Australia
     
    GeosciencesHenry et al. (2005)
    Austria
     
    Niedermayr et al. (1995)
    Canada
     
    162-165.+1 other referenceJ. Traill (1952)
    China
     
    Jian-Wei Li et al. (2002)National Geological Archives of China ...Zhang Jianguo et al. (2004)
    Czech Republic
     
    Palache et al. (1951)Plášil- (Pavel Škácha coll.)Plasil (2005)Palache et al. (1951)+4 other referencesLapis 2002 (7/8)+1 other referenceTvrdý et al. (2010)Plášil et al. (2011)Plášil et al. (2012)Analyzed by and in the collection of ...Desor (04/2022)70 (in German)+2 other referencesScharm+7 other referencesJakub PlasilJakub Kristek CollectionSejkoraPauliš P. et al. (Kutna Hora, issue 1)Mineralienwelt 1993 (1)Petr Pauliš
    DR Congo
     
    304 [287-288].+3 other references
    Egypt
     
    El-Naby (2009)Hussein et al. (1988)
    Europe
     
    Quellmalz (1992)
    France
     
    J.-J. Périchaud: "Où trouver les minéraux d'Auvergne" et al. (Clermont-Ferrand)+1 other reference- (1998)OLLIC Pascal Collection+1 other referenceOLLIC Pascal Collection+1 other referenceOLLIC Pascal Collection+1 other referenceR. Pierrot- (1998)M.Deliens et al. (2004)Lièvre et al. (2002)- (1998)- (1998)- (1998)Caubel (1997)Henriot et al. (1998)- (1998)+1 other reference
    Gabon
     
    Janusz Janeczek (1999)+1 other referenceMineralogical Society of America - ...
    Germany
     
    Walenta (1992)Walenta (1992)Bald+1 other referenceWeiß (1990)Dill et al. (2010)Aufschluss 69/ (7+8)+1 other referenceWittern (2001)Hofmann (1992)Möhn et al. (10/2020)Wittern (2001)A. Weisbach (1882)+1 other referenceWeisbach (1882)Massanek et al. (2005)Wittern (2001)Wittern (2001)Witzke et al. (1998)Witzke et al. (1998)
    Hungary
     
    Szakáll et al. (1996)Szakáll et al. (1996)+1 other reference
    Italy
     
    Daniele Ravagnani - I giacimenti ...Piccoli et al. (2007)Ravagnani (1974)Campostrini et al. (2006)
    Japan
     
    K. Watanabe (1976)Watanabe (1976)
    Mexico
     
    Hernández-Herrera et al. (2025)
    Poland
     
    Lis et al. (1986)Lis et al. (1986)Lis et al. (1986)Mochnacka et al. (2000)Syczewski et al. (2023)
    Romania
     
    Hîrtopanu P. et al. (2004)
    Slovakia
     
    Koděra (1986)
    Slovenia
     
    Dolenec et al. (1979)+1 other reference
    Spain
     
    www.foro-minerales.com (2020) ...Castillo-Oliver et al. (2019)www.foro-minerales.com (n.d.)www.foro-minerales.com (n.d.)www.foro-minerales.com (n.d.)
    Switzerland
     
    Stalder et al. (1998)
    Tajikistan
     
    Chernikov et al. (1997)
    UK
     
    Palache et al. (1951)Golley et al. (1995)Golley et al. (1995)Golley et al. (1995)
    USA
     
    Grant et al. (2005)Grant et al. (2005)USGS: Geological Survey Circular 320+1 other referenceIn the collection of Alex EarlKampf et al. (2017)Eckel et al. (1997)Travis Olds collection+1 other referenceEckel et al. (1997)Eckel et al. (1997)+1 other referenceMcCollam (2002)+1 other referenceThe Iron Mines of NJ (1910)Northrop et al. (1996)NMBMMR Memoir 15 Geology and Technology ...+4 other referencesNorthrop et al. (1996)NMBMMR Memoir 15 Geology and Technology ...NMBMMR Memoir 15 Geology and Technology ...Young et al. (1960)Färber (n.d.)Bullock (1981)Bullock (1981)Kampf et al. (2008)+1 other referenceCollected by and in the collection of ...Kampf et al. (2012)Jerry Baird specimenUSGS TEI #514+3 other referencesHaynes (2000)Bullock (1981)
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